Ruby Queen

#b0063d

A pink that is saturated. It is mid — the hardest range to put text on, either colour struggles.

Hex

#b0063d

RGB

176, 6, 61

OKLCh

48.4% 0.191 13.8°

CIELAB (D50)

38.0, 61.7, 20.4

What is true of this colour, and of no other

  • 8 other named colours sit within ΔE00 2 of it.
  • It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
  • As text on white it measures APCA Lc 82.4; on black, Lc -19.5. The sign is the polarity, which the WCAG ratio discards.
  • Built into an eleven-step scale, 10 of the 10 adjacent pairs stay ΔE00 2 apart — see the ramp.
  • protanopia and deuteranopia and tritanopia shift it by ΔE00 28.8 and 41.2 and 52.4 — no red cone.

Text on this colour

White text

7.14:1 — passes AA

Black text

2.94:1 — fails AA

White text is the better of the two at7.14:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#b0063d

protanopia

#3f3f3e · ΔE00 28.8

deuteranopia

#646436 · ΔE00 41.2

tritanopia

#808000 · ΔE00 52.4

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isBindi Red at ΔE00 0.284: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

6 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.